Sprinkle zucchini, tomato, onion and cheese in prepared dish. Beat remaining ingredients until smooth, 15 seconds in blender on High speed or 1 minute with hand beater. Pour into dish. Bake until knife inserted in center comes out clean, about 30 minutes. Cool 5 minutes before slicing and serving.

As pictured and if desired, garnish the wide end of each wedge by alternating 3 thinly-sliced tomato half wheels with 3 thinly-sliced zucchini wheels.The Impossible Zucchini-Tomato Pie is one of 12 recipes in a 1982 booklet advertising the Bisquick® Recipe Club and The Bisquick "No Time To Cook" Recipe Book featuring Impossible Pies. A similar, newer version of the cookbook is available at Amazon.You might likeImpossible Spinach and Feta PieImpossible Bacon Pie